Question

An unknown alcohol (C4H10O) reacted slowly with metallic sodium and gave positive results with NaOI. Have you sufficient information to be reasonably certain which of the butyl alcohols the unknown may be? Explain​

Answer 1

The unknown butyl alcohol which reacted slowly with metallic sodium and gave positive results with NaOI is: 1-iodo, butan-2-ol.

Discussion:

When metallic sodium reacts with an unknown alcohol, and NaOI is produced. In essence, the alcohol compound has an iodo-group on one of it's carbon atoms and therefore has it's alcoholic, -OH group on carbon position 2.

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